| Welkom Kilburn | Central Australia Time | -08:30 |
| Welkom Kilgore | Central Time | 08:00 |
| Welkom Kilimanjaro | East Africa Time | -01:00 |
| Welkom Kilinochchi | India Standard Time | -03:30 |
| Welkom Klil | Israel Time | 00:00 |
| Welkom Klang Dong | Indochina Time | -05:00 |
| Welkom Klagenfurt | Central European Time | 01:00 |
| Welkom Klopein | Central European Time | 01:00 |
| Welkom Knightdale | Eastern Time | 07:00 |
| Welkom Knoxfield | Eastern Australia Time | -09:00 |
| Welkom Knüllwald | Central European Time | 01:00 |
| Welkom Chuo Ward | Japan Time | -07:00 |
| Welkom Ko Samui | Indochina Time | -05:00 |
| Welkom Ko Chang | Indochina Time | -05:00 |
| Welkom Ko Pha-ngan | Indochina Time | -05:00 |
| Welkom Ko Phra Thong | Indochina Time | -05:00 |
| Welkom Kodagu | India Standard Time | -03:30 |
| Welkom Kochi | India Standard Time | -03:30 |
| Welkom Kochi | India Standard Time | -03:30 |
| Welkom Kiryat Tiv'on | Israel Time | 00:00 |
| Welkom Kirnapur | India Standard Time | -03:30 |
| Welkom Kirkwall | United Kingdom Time | 02:00 |
| Welkom Kittery | Eastern Time | 07:00 |
| Welkom Kitty Hawk | Eastern Time | 07:00 |
| Welkom Kitscoty | Mountain Time | 09:00 |
| Welkom Kiyose | Japan Time | -07:00 |
| Welkom Kita Ward | Japan Time | -07:00 |
| Welkom Kisosaki | Japan Time | -07:00 |
| Welkom Kham Yai | Indochina Time | -05:00 |
| Welkom Keystone | Mountain Time | 09:00 |
| Welkom Kfar Monash | Israel Time | 00:00 |
| Welkom Kfar Saba | Israel Time | 00:00 |
| Welkom Kfar Tavor | Israel Time | 00:00 |
| Welkom Khadki | India Standard Time | -03:30 |
| Welkom Khao Phang | Indochina Time | -05:00 |
| Welkom Khanote | Pakistan Time | -03:00 |
| Welkom Khetri Nagar | India Standard Time | -03:30 |
| Welkom Khimsar | India Standard Time | -03:30 |
| Welkom Khelil | Central European Time | 01:00 |
| Welkom Khatiwali | India Standard Time | -03:30 |
| Welkom Khurais | Arabian Time | -01:00 |
| Welkom Kemptville | Eastern Time | 07:00 |
| Welkom Kengalkempohalli | India Standard Time | -03:30 |
| Welkom Kemberg | Central European Time | 01:00 |
| Welkom Kelshi | India Standard Time | -03:30 |
| Welkom Kelso | Eastern Australia Time | -09:00 |
| Welkom Kelso | United Kingdom Time | 02:00 |
| Welkom Kelsterbach | Central European Time | 01:00 |
| Welkom Kelston | United Kingdom Time | 02:00 |
| Welkom Kelvin Grove | Eastern Australia Time | -08:00 |